Systematic Study of Gold Nanoparticle Effects on the Performance and Stability of Perovskite Solar Cells

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F26%3A0199505" target="_blank" >RIV/00216305:26620/26:0199505 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.mdpi.com/2079-4991/15/19/1501" target="_blank" >https://www.mdpi.com/2079-4991/15/19/1501</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/nano15191501" target="_blank" >10.3390/nano15191501</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Systematic Study of Gold Nanoparticle Effects on the Performance and Stability of Perovskite Solar Cells

Popis výsledku v původním jazyce

We explore a plasmonic interface for perovskite solar cells (PSCs) by integrating inkjet-printed TiO2-AuNP microdot arrays (MDA) into the electron transport layer. This systematic study examines how the TiO2 blocking layer (BL) surface conditioning, AuNP layer positioning, and nanoparticle loading collectively influence device performance. Pre-annealing the BL increases its hydrophobicity, yielding smaller and denser AuNP microdots with an enhanced localized surface plasmon resonance (LSPR). Positioning the AuNP MDA at the BL/perovskite interface (above the BL) maximizes near-field plasmonic coupling to the absorber, resulting in higher photocurrent and power conversion devices; these trends are corroborated by finite-difference time-domain (FDTD) simulations. Moreover, these devices demonstrate better stability over time compared to those with AuNPs at the transparent electrode (under BL). Although higher AuNP concentrations improve dispersion stability, preserve MAPI crystallinity, and yield more uniform nanoparticle sizes, device measurements showed no performance gains. After annealing, the samples with the Au content of 23 wt% relative to TiO2 achieved optimal PSC efficiency by balancing plasmonic enhancement and charge transport without the increased resistance and recombination losses seen at higher loadings. Importantly, X-ray diffraction (XRD) confirms that introducing the TiO2-AuNP MDA at the interface does not disrupt the perovskite's crystal structure, underscoring the structural compatibility of this plasmonic enhancement. Overall, our findings highlight a scalable strategy to boost PSC efficiency via engineered light-matter interactions at the nanoscale without compromising the perovskite's structural integrity.

Název v anglickém jazyce

Systematic Study of Gold Nanoparticle Effects on the Performance and Stability of Perovskite Solar Cells

Popis výsledku anglicky

We explore a plasmonic interface for perovskite solar cells (PSCs) by integrating inkjet-printed TiO2-AuNP microdot arrays (MDA) into the electron transport layer. This systematic study examines how the TiO2 blocking layer (BL) surface conditioning, AuNP layer positioning, and nanoparticle loading collectively influence device performance. Pre-annealing the BL increases its hydrophobicity, yielding smaller and denser AuNP microdots with an enhanced localized surface plasmon resonance (LSPR). Positioning the AuNP MDA at the BL/perovskite interface (above the BL) maximizes near-field plasmonic coupling to the absorber, resulting in higher photocurrent and power conversion devices; these trends are corroborated by finite-difference time-domain (FDTD) simulations. Moreover, these devices demonstrate better stability over time compared to those with AuNPs at the transparent electrode (under BL). Although higher AuNP concentrations improve dispersion stability, preserve MAPI crystallinity, and yield more uniform nanoparticle sizes, device measurements showed no performance gains. After annealing, the samples with the Au content of 23 wt% relative to TiO2 achieved optimal PSC efficiency by balancing plasmonic enhancement and charge transport without the increased resistance and recombination losses seen at higher loadings. Importantly, X-ray diffraction (XRD) confirms that introducing the TiO2-AuNP MDA at the interface does not disrupt the perovskite's crystal structure, underscoring the structural compatibility of this plasmonic enhancement. Overall, our findings highlight a scalable strategy to boost PSC efficiency via engineered light-matter interactions at the nanoscale without compromising the perovskite's structural integrity.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

21001 - Nano-materials (production and properties)

Projekt

—

Návaznosti

—

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Nanomaterials

ISSN

—

e-ISSN

2079-4991

Svazek periodika

15

Číslo periodika v rámci svazku

19

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

21

Strana od-do

1-21

Kód UT WoS článku

001593796200001

EID výsledku v databázi Scopus

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